BrainPlaques (image) Washington University School of Medicine Caption Amyloid plaques (shown in red) dot the brain of a mouse model of Alzheimer's disease. Scientists have found that an antidepressant can reduce production of the primary component in these plaques. Credit John Cirrito, Ph.D. Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.